CVE-2026-23367
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-03-25
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used with the radiotap namespace (not with vendor namespaces), but if the undefined field 18 is used, the alignment/size is unknown as well. In this case, iterator->_next_ns_data isn't initialized (it's only set for skipping vendor namespaces), and syzbot points out that we later compare against this uninitialized value. Fix this by moving the rejection of unknown radiotap fields down to after the in-namespace lookup, so it will really use iterator->_next_ns_data only for vendor namespaces, even in case undefined fields are present.
Affected Software (18)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < 6f80f6a60f5d87e5de5fb2732751fce799991c24 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < d1d1d3c50095928624a95b67a6d7ccc3a18f2215 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < 703fa979badbba83d31cd011606d060bfb8b0d1d |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < 129c8bb320a7cef692c78056ef8e89a2a12ba448 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < 2a60c588d5d39ad187628f58395c776a97fd4323 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < 2f8ceeba670610d66f77def32011f48de951d781 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < e664971759a0e5570b50c6592e58a7f97d55e992 |
| Linux | Linux | 33e5a2f776e331dc8a4379b6efb660d38f182d96 < c854758abe0b8d86f9c43dc060ff56a0ee5b31e0 |
| Linux | Linux | 2.6.34 |
| linux | linux_kernel | 2.6.34.1 – 5.10.253 |
| linux | linux_kernel | 2.6.34 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |